[英]Prometheus config file with Puppet: how to handle quotes and brackets in yaml config file?
I'm trying to write a Prometheus config with this module: https://github.com/voxpupuli/puppet-prometheus我正在尝试使用此模块编写 Prometheus 配置: https : //github.com/voxpupuli/puppet-prometheus
But I can't seem to get it to generate a valid relabeling config for Prometheus.但我似乎无法让它为 Prometheus 生成有效的重新标记配置。
This is the relevant part of my current config:这是我当前配置的相关部分:
'relabel_configs' => [
{
'source_labels' => '[__meta_consul_node]',
'regex' => '^(.*)$',
'target_label' => 'instance',
'replacement' => '$1',
},
{
'source_labels' => '[__meta_consul_service]',
'regex' => '^(.*)$',
'target_label' => 'job',
'replacement' => '$1',
}
],
This is what I get in my prometheus.yml:这是我在 prometheus.yml 中得到的:
relabel_configs:
- source_labels: '[__meta_consul_node]'
regex: ^(.*)$
target_label: instance
replacement: $1
- source_labels: '[__meta_consul_service]'
regex: ^(.*)$
target_label: job
replacement: $1
What I want is:我想要的是:
relabel_configs:
- source_labels: ['__meta_consul_node']
regex: '^(.*)$'
target_label: 'instance'
replacement: '$1'
- source_labels: ['__meta_consul_service']
regex: '^(.*)$'
target_label: 'job'
replacement: '$1'
I tried a ton of things, but could not figure out how to format hash values in my manifest so that I would get the correct config file for Prometheus.我尝试了很多东西,但无法弄清楚如何在我的清单中格式化哈希值,以便我获得 Prometheus 的正确配置文件。
This seems to be a problem with the ruby parser?这似乎是 ruby 解析器的问题? How do I escape the '
correctly?我如何正确转义'
?
I think the confusion here is how variable arrays are handled in Puppet and in YAML, and how strings are parsed in YAML.我认为这里的困惑在于如何在 Puppet 和 YAML 中处理变量数组,以及如何在 YAML 中解析字符串。
In YAML, variable arrays can be:在 YAML 中,变量数组可以是:
array:
- element
- another_element
or:或者:
array: [element, another_element]
In Puppet, they look like:在 Puppet 中,它们看起来像:
$array = [element, another_element]
Therefore, you can have a clean one-to-one mapping of the arrays by simply specifying an array of strings in your Puppet hash for the source_labels
key like:因此,您可以通过简单地在 Puppet 哈希中为source_labels
键指定一个字符串数组来获得数组的干净的一对一映射,例如:
'relabel_configs' => [
{
'source_labels' => ['__meta_consul_node'], # single element string array
'regex' => '^(.*)$',
'target_label' => 'instance',
'replacement' => '$1',
},
{
'source_labels' => ['__meta_consul_service'], # single element string array
'regex' => '^(.*)$',
'target_label' => 'job',
'replacement' => '$1',
}
],
and this will correctly generate an array of strings for your source_labels
as you described for what you desired.这将正确地为您的source_labels
生成一个字符串数组,如您所描述的那样。
relabel_configs:
- source_labels: ['__meta_consul_node'] # single element string array
regex: ^(.*)$
target_label: instance
replacement: $1
- source_labels: ['__meta_consul_service'] # single element string array
regex: ^(.*)$
target_label: job
replacement: $1
Note that the YAML will be parsed exactly the same for quoted and unquoted strings (eg target_label: job
is the same as target_label: 'job'
).请注意,对于带引号和不带引号的字符串,YAML 的解析方式将完全相同(例如target_label: job
与target_label: 'job'
)。
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